From: Erick B. (erickbe@xxxxxxxxx)
Date: Fri Feb 23 2001 - 15:37:15 GMT-3
Some more notes. I've had to explain this to many
folks. HSRP shares a virtual IP address between the
HSRP devices in the same group on the same subnet. One
is active and rest are in standby. The primary IP
address and other IP services are up and running as
normal still. HSRP does not put the whole interface in
standby mode (this is what many of the folks I've
talked to thought). If it's in standby then the
virtual IP isn't active and thats it.
Routing protocols do not announce routes using the
HSRP IP address. HSRP is not a routing protocol.
Andrew is right, HSRP/VRRP provide redundancy for
hosts only.
--- Andrew Short <ashort@wingedwheel.net> wrote:
> Honestly,
>
> HSRP and OSPF should NEVER have anything to do with
> each other. Operate
> them on the same routers, sure, but you are talking
> apples and oranges.
>
> OSPF is a routing protocol, let it choose it's
> routes accordingly.
>
> HSRP is a high availability tool to serve hosts with
> static routes
> configured. And as far as I know, it doesn't work
> on WAN interfaces (and
> I don't know why it would, or why you'd want it
> too).
>
> Think of HSRP as something that you aim at a HOST.
>
>
> On Fri, 23 Feb 2001, Dustin L LaMascus wrote:
>
> > I would like to use HSRP on R1 and R2 for
> redundancy to the WAN. I would also
> > like to limit the OSPF network to using only the
> HSRP (active) gateway.
> > Hope this is enough detail..
> >
> >
> > OSPF NETWORK
> > | |
> > | |
> > | hsrp |
> > R1-------R2
> > | |
> > | |
> > FRAME CLOUD
> > |
> > |
> > R3
> >
> >
> > Dustin
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